GB3HG Complies with the new regulations governing repeaters, This repeater has 12.5 khz receive filters fitted which requires that the Station transmitting to the repeater has a maximum deviation of 2.5 khz.

Method used to access GB3HG are 1750hz tone or 88.5 CTCSS

	A 1750 hz tone burst is required at a maximum 2.4 khz deviation this must be sent without a break in the transmission at the start of every over if CTCSS is not being used
	CTCSS..88.5hz
	About 7 seconds of speech should latch on the logic (give your call sign twice slowly should be ok)
	Remember ! no break in transmission while carrying out the above tasks

If repeater access still can not be acquired check

	Tone burst frequency..(set for 1750 hz)
	Deviation of tone burst (2.4khz maximum)
	Speech Deviation..(2.5khz maximum)
	If using CTCSS check for 88.5hz

If this still does not work then the GB3HG Repeater group has some very nice knitting needles for sale.

Or you could try here

 

CTCSS

 about ctcss (continuous tone coded squelch system)
listening around on the amateur bands it can be  found that  quite a lot of amateurs  have the idea that ctcss will solve all their problems of interference from other repeaters when in fact this is untrue. E.G--lets start with a fixed station with a 2 mtr radio tuned to 145.625 if this fixed station is within hearing distance of two repeaters on this frequency, ctcss will allow access to a specific repeater which can be chosen by the appropriate ctcss frequency,great it works.

question
what happens when both of the repeaters that our fixed station can hear are active and transmitting

answer
what we get when both repeaters are active and our fixed station receiver can hear them both is a horrible hetrodyne caused by the receiver picking up the two signals, as you can see ctcss will do nothing for the problems of interference received from two repeaters on the same frequency. it is primarily designed for selective calling to a specific repeater

There is no need for any groups to fit CTCSS to their repeaters, but if they wish to do so they must adhere to the RMC plan which is based on geographic areas (see below)
CTCSS when available is in addition to the standard 1750Hz toneburst access NOT a substitute.
The current standard remains unchanged. It expects a normal receiver sensitivity of 0.3µV
In practice, this means that a signal of about 0.6µV is required to open the squelch which usually has a 6dB hysteresis. However when the repeater's receiver detects its own CTCSS sub-tone, the squelch can open at a lower level, providing a better service for those equipped to take advantage of it, while not affecting the service to others.
The repeater has to radiate the same sub-tone but only when it is in talkthrough. Thus stations which monitor the repeater with receivers using CTCSS need not hear the regular morse identification.
Where a repeater is fitted with CTCSS it must identify the sub-tone used by appending a word gap (7 dot spaces) and then the sub-tone identification letter to its morse identification so that all users are made aware of the sub-tone required.
The recommended deviation for the CTCSS tone where used shall be 500Hz±200Hz